Improvement in carriage-wheel hubs



CHARLES c. HOLT. Improvement in CarriagwWheefHubs;

Patented May 14, 18-72.

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ITETD CHARLES C. HOLT, OF LAWRENCE, MASSACHUSETTS.

IMPROVEMENT IN CARRIAGE-WHEEL HUBS.

To all persons to whom these presents may come:

Be it known that I,'O11ARLEs O. HOLT, of

Lawrence, of the county of Essex and State of Massachusetts, haveinvented a new and useful Improvement in Carriage-\Vheel Hubs;

and the hub portions connected with such sleeve. Figs. 3 and 4 areseparate sections of such wheel-hub portions or spoke-holders. Fig. 5 isa side view of the sleeve or box. Fig. 6 is a side view of theaxle-journal.

In such drawing, A denotes the axle or a part thereof, and a, thejournal, provided at its outer end with a screw, e, to receive a nut, C.The sleeve or box in which the journal turns is shown at B. Near itsrear end such box is provided with a shoulder, b, and at and somedistance back from its front end the box or sleeve has a male screw, 0,formed on it, to

screw into one of the spoke-holders D E- viz., into the latter of thetwo which is bored to receive the sleeveand provided with a femalescrew, 9, to receive the screw 0, all being 'as shown. The threads ofscrews 0 g are, however, to be pitched in a direction opposite to thoseof the screw 0 and nut C. This enables the axle to-be used to effectrotary motion of the sleeve, in manner and for the purpose of screwingit into the spoke-holder E, as hereinafter explained. By having bothholders D E separate from each other and the sleeve, the latter can berevolved within them without causing either to turn against thespokeheads. The spoke-holder or clamp D is bored to receive the sleeveor box, and is furnished in the bore with a shoulder, f, to abut againstthe shoulder b of the sleeve, such shoulders being arranged in manner asrepresented. The heads of the spokes are to go between the twospoke-holders D E, constituting parts of the hub. The holder D is to beset up toward the holder E, so as to clamp the holders to the spokes.This latter may be effected by placing a washer between the nut C andthe next adjacent end of the sleeve or box B,

, screwing the nut 0 hard down upon such washer, so as to confine thesleeve to the journal, and afterward revolving the axle so as to turnthe box and screw it intothe part E, and thereby crowd the part Dagainst the heads of the spokes.

From the above it will be seen that the hub is composed of the sleeve orbox B, and the two spoke-holders D E, and thus is very simple inconstruction, all being made of metal. No bolts are required to hold thespokes in place in the hub. By removing the washer from the journal thelatter will become so freed from the sleeve as to be capable of freelyrevolving within it, or of playing endwise, as occasion may require.

Each holder D or E is chambered, as shown at h h, concentrically withthe sleeve B, such chambers being to receive a false hub or wooden tubefor the inner ends of the spokes to abut against.

I make no claim, broadly, to spoke-holders, a separate sleeve or box,and spoke-holding plates, screw bolts and nuts, made, arranged, andcombined as shown in the United States Patent N 0. 118,589. Nor do Iclaim spokeholders and a separate sleeve or box, made, arranged, andapplied together, as shown in the United States Patent 123,480. Neitherof said patents represents theaxle-journal and its nut constructed withtheir screw-threads to pitch in directions opposite to those of thescrews of the sleeve and holding plate; and, furthermore, neither ofsuch patents shows the holding plates as made with spoke-bearings,

.and chambered as mine are, to receive a woodon tube to encompass thesleeve and support the spokes at their inner ends. I claim- 1. Incombination with the spokeholders D E and the separate sleeve or box B,arranged and provided with shoulders I) f and screws 0 g, as set forth,the axle-journal a and the nut C, as constructed with theirscrew-threads to pitch in directions opposite to those of the screwsc 9,all being essentially as specified.

2. I also claim the spoke-holders D E, as provided with spoke-bearingsand as chambered, as shown at h h h h, when arranged and combined withthe sleeve or box B, having shoulders and screws, as set forth, thechambers of the holders being to receive a tube when placed on thesleeve or box B, as described. \Vitnesses: CHARLES C. HOLT.

R. H. EDDY, J. R. SNOW.

Therefore,

